Polycrystalline silicon solar cell

Appearance design:

                                       1. Size: 156.75×156.75±0.3mm Chamfer: R=1mm

                                       2. Front main grid width: 0.7±0.1mm Number of grid lines: 106

                                       3. The main grid is segmented, with forks at both ends. The fine grid at 5mm left and right of the main grid gradually changes from 35um to 50um.

                                       4. Anti-breakage wires: 3 wires, spaced type

                                       5. Back electrode width: 1.9±0.2mm, excluding centipede feet

　　　　　　　　Temperature Coefficient:

                                       1. Open circuit voltage temperature coefficient: a=-0.32%/k

                                       2. Short circuit current temperature coefficient: b=+0.02%/k

                                       3. Maximum power temperature coefficient: r=-0.4%/k